A new sunblock that doesn't penetrate the skin

Researchers at Yale have developed a sunscreen that doesn't penetrate the skin, eliminating serious health concerns associated with commercial sunscreens.

Astronomers discover that galaxies are either asleep or awake

(PhysOrg.com) -- Astronomers have probed into the distant universe and discovered that galaxies display one of two distinct behaviors: they are either awake or asleep, actively forming stars or are not forming any new stars ...

Nanotechnology 'culture war' possible, study says

Rather than infer that nanotechnology is safe, members of the public who learn about this novel science tend to become sharply polarized along cultural lines, according to a study conducted by the Cultural Cognition Project ...

It's a one-way street for sound waves in this new technology

Imagine being able to hear people whispering in the next room, while the raucous party in your own room is inaudible to the whisperers. Yale researchers have found a way to do just that—make sound flow in one direction—within ...

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